Folding unit



June 30, 1931. o.l c. RoEsEN 1,812,716

' FOLDING UNIT Original Filed Sept. 17, 1927 jwn 251/ V am caw/@gemPatented June 30, 1931 UNITED STATES..

OFFICE osoAR CHARLES Rensen, or BnooritYN, New YoRK, essIeNon To woonNriwsenrnn MACHINERY Geneesheren', or New roma, N. Y., s: oonronfirionor vir-rompi FOLDING UNIT Application filed September 17, 1%?, SerialNo. 220,161. Renewed November 29, 1930.

This invention relates to a newspaper printing machine folder' for useprincipally in folding tabloids-.1`

. Theprincipal objects of the invention are 53 to 'provide' anarrangement of the folding unit such that when folding tabloids the slitproduct can be run successfully into the folding unitf'riom eithersideand the margins of the two halves of the web will register dilolreetly, and to eliminate the compensation rollers' usually employed.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the'accompanyf; ing drawings in which Fig. 1shows a folder arranged in accordance with this invention for receivingthe websfrom one side; and

Fig. 2 is a similariviewshowing the posiid' tion' for receivingthemfrom'theother side.

When running a newspaper product in a transverse collect run, that is,from both former-s into a single folder unit it has been found verydifficult, ifr not impossible, to run the product over compensatingrollerswhen the product is'slit over the former rolls as is the casein atabloid newspaper.

In the ordinary practice the websare run from` the right handI formerinto the left hand folder, and vice versa, over compensating rollers.This works well enough for ordinary newspapers where the edge is folded.

It cannot be done with a tabloid slit edge paper without causing toomuch puckering i or gathering of some of the webs over the others.

I obviate this difliculty by eliminating the adjustable compensatingrollers and employing a pair of nipping rolls on each folder j unit overthe folding rolls and movably independently of the formers. The splitweb is shiftable from one side tothe other without moving the nippingrolls. It will be understood that a pair of nipping rolls, usuallyemployed with each former, are retained in the same position as usual.

In the drawings, I have shown a. construction comprising a pair offolding units 10. Each folding unit embodies the usual foldg "1 ingmechanism including a pair of folding its.

cylinder 11 and 12 mounted on the frame of the unit 10, and also a pairof nipping rolls 13 also supported by' this frame directly over thefolding couple.` This is used in conjunction with the two formers 14 andthe former rolls 15 and the nipping rolls 16 placed directly below thenoseof the former and mounted in a stationary positionl on the frame ofthe machine.

In the position shown in Fig. 1, thetwo webs from the two formers arerun directly from the nipping rolls 16 tothe nipping rolls 13 of one ofthe folding units which nip them at their marginsand direc-t them in ashort straight path into the folding couple. ,In this way the two websare collectedy at the left ide as shown in Fig. 1. l

lVhen it is desired to collect them on the right side the other foldingunit 10 is used as shown in F ig. 2, and it will be seen that therelationship between the nipping rolls 13 and the folding couple is thesame as in the position shown in Fig. 1. However, the run of the webs isdifferent. folders are so located that the margins 17 of the webs comingfrom bothformers will meet and register with thefolder without thenecessity of running either of them over compensating rollers. As themargins on one half the webs are staggered with respect to those on theother half, it is necessary to place the folder in each of the positionsshown out of line. y between the nips of the rolls 13 directly over thefolder unit they will register directly,`

as is indicated.

In this way tabloidipapers with their slit edges `can be run through toeither of the two folders without material puckeringl or gathering ofsome of the webs folded outside the others. Also the compensatingrollers with their supporting parts are eliminated altogether and thenipping r'olls which are a,

part of the folding mechanism are mounted in stationary bearings, o:such bearings as may be desired to adjust them, without pro- O'n eachside the Thus when associated viding for the long adjustments necessaryin many cases for the usual compensating rollers. Y y y Although I haveillustrated and described Cri only a single form of the invention I amaware of the fact lthat modifications can be made therein by any personskilled in the art without departing from the scope of the invention asexpressed in the claims. Therefore, I do not wish to be limited to theexact form shown, but what I do claim is 1. In a newspaper foldingmachine, the combination with a pair of formers and their nipping rollsfor receiving and directing two webs, of a folding unit located at oneside of the center, a frame for said unit and a pair of nipping rollscarried by said frame independently of the formers and directly over thefolding unit for receiving the webs from both of the pairs of nippingrolls on the formers. l

2. In a folding machine for a newspaper printing press, the combinationwith a pair of formers for receiving the two halves of a slit web, andnipping rolls associated with the formers and in line with the nosesthereof, of a folding unit having a folding couple, a frame for saidunit and a pair of nipping rolls carried by said frame directly over thefolding couple and receiving the two webs directly from the nippingrolls of the two formers.

3. In a folding machine for a newspaper' printing press, the combinationwith a pair of forxners for receiving the two halves of a slit web, andnipping rolls associated with the formers and in line with the nosesthereof, of a folding unit having a folding couple, a frame for saidunit and a pair of nipping rolls carried by said frame directly over thesame and receiving the two webs directly from the nipping rolls of thetwo formcrs,

vthe second pair of nipping rolls being located out of line with thefirst pair, for the purpose described.

4. In a folding machine of the character described, the combination witha pair of -formers for receiving the two halves of a slit web and twopairs of nipping rolls, one pair directly in line with the nose of eachformer, of a folding unit having` a pair of nipping rolls associatedtherewith to deliver always directly between the cylinders of thefolding couple and located directly over the folding couple in suchposition that the margins of the two webs coming from the two formerswill meet and register on a transverse collect run.

5. In folding machine for tabloid newspapers, the combination of twoformers and two folders, said formers each having a pair of nippingrolls carried thereby and located directly in line with the nose of itsrespective former, a frame for said folders, said folders each having apair of nipping rolls associated therewith and carried by said frame andlocated directly above the folder for receiving the slit webs directly,so that each folder will receive the halves of the slit web with theirmargins in registration.

6. In a folding machine for tabloid newspapers, the combination of twoformer-s, two folders for receiving the slit webs directly, said foldersand formers being so located relatively to each other that each folderwill receive the two halves of the slit web and means adjacent to thefolders for causing the webs to be led into the folder with theirmargins in registration.

7. In a folding machine the combination of a. plurality of formers, amovable transverse folding mechanism so arranged relatively to theformers that the folding mechanism may be adjusted with respect to theformers and nipping rolls carried by the folding mechanism so that themargins of the products of the formers shall register when entering thetransverse folding mechanlsm.

8. In a folding machine, the combination of two formers, each forreceiving one half of a newspaper web, a transverse folder, said folderbeing movable laterally across the machine and means for directing bothhalf webs into said folder.

9. In a folding machine for folding tabloid newspapers, the combinationof two parallel formers for receiving the two slit halves of the web, afolder movable laterally across the machine, and means for directing thehalf webs from the two former-s into the folder in two positionsthereof.

10. In a folding machine, the combination with two formers in fixedposition for receiving the two halves of a split web, and a transversefolder movable to a position out of registration with either former inwhich the margins of the two webs will register with each other as theypass into the folder.

In testimony whereof I have hereunto affixed my signature.

OSCAR CHARLES ROESEN.

